A compact hydraulic power pack allows installation in confined spaces and are intended for use in lifting platforms, small presses, machine tools and vehicles. A compact power pack in hydraulics consists of an electric motor, a pump, a housing and a tank. The aluminium housing forms the supporting part of the compact power pack, to which all main parts including hydraulic components are attached. The function of the compact power pack can be seen from the relevant circuits. By fitting NG04 or NG06 hydraulic valves, the compact units can be the compact units can be converted into complete drive and control units. The standard connection plates for directional control valves have the consumer connections A and B arranged on one side. The compact hydraulic unit can be installed horizontally or vertically. When using rectangular tanks, the installation position is always horizontal.